﻿import turtle

def draw():
   wn = turtle.Screen()
   wn.bgcolor("lightgreen")
   wn.screensize(800, 600)

   tess = turtle.Turtle()
   tess.shape("turtle")
   tess.color("blue")

   tess.penup()                # This is new
   size = 20
   for i in range(50):
      tess.stamp()             # Leave an impression on the canvas
      size = size + 3          # Increase the size on every iteration
      tess.forward(size)       # Move tess along
      tess.right(24)           #  ...  and turn her


if __name__ == "__main__":
    draw()
    turtle.mainloop()

